In the original Diablo, Light Radius also had a tactical aspect, where it would affect when monsters took notice of the player and would begin advancing toward them to attack them. In this way, characters with a large light radius could trigger monsters from far off and save some walking, whereas ones with a small light radius could sneak past groups of them.

In Diablo III, Light Radius stat is non-existent. Most areas are brightly lit, and in darker ones (and in the night) characters have a static radius of lighting that cannot be changed by any means, and does not affect the gameplay in any way.